470 ccrs ea7 in Modern Mack Truck General Discussion Posted January 7, 2021 Morning all I have a 2007 Mack trident 470 ccrs ea7 keeps throwing code 4-5 turbo actuator I have tested the actuator and there is nothing visually wrong with it and no air leaking out of the diaphram Cannot find any other boost leaks or rubbed through hoses I am thinking it may be the 2 sensors in the intake manifold one at top front one at rear behind computer any help or pointers appreciated note engine photos is not my engine. Just as a guide as I’ve been told there is a few different ones
470 ccrs ea7
in Modern Mack Truck General Discussion
Posted
Morning all
I have a 2007 Mack trident 470 ccrs ea7 keeps throwing
code 4-5 turbo actuator
I have tested the actuator and there is nothing visually wrong with it and no air leaking out of the diaphram
Cannot find any other boost leaks or rubbed through hoses
I am thinking it may be the 2 sensors in the intake manifold one at top front one at rear behind computer
any help or pointers appreciated
note engine photos is not my engine. Just as a guide as I’ve been told there is a few different ones